sector analysis is particularly important in technology. because people confuse this gigantic group of stocks, which comprises more than 15% of the s&p 500, constantly. tech is actually the agglomeration of a whole group of sectors, semiconductors, disc drives, software, cloud, internet, personal computers, large scale enterprise hardware makers, tech, tech communications, infrastructure stock, assemblers. each has a separate growth rate. and here i like to look at the earnings per share growth rates of the companies i follow versus the individual slices of the sectors. because the sector growth rate doesn't work even though people keep trying to use it. cloud stocks, for example-r highly valued. meaning the price teernings and growth rates are extreme. that means there's no room for error, or hair as we call it, meaning something is wrong, some chink that could upset the growth rate. in 2011 one of my favorite cloud plays, salesforce.com, report aid magnificent quarter but its guidance for its billings was later than i was hoping. the stoc